Since you added 'email' parameter to multiauth block, when not specified, it throws an error such as
exception 'ErrorException' with message 'Undefined index: email' in [...]/ollieread/multiauth/src/Ollieread/Multiauth/Reminders/ReminderServiceProvider.php:49
Please check for this value since it has been introduced in a recent version and thus breaks all old code.
Since you added 'email' parameter to multiauth block, when not specified, it throws an error such as
exception 'ErrorException' with message 'Undefined index: email' in [...]/ollieread/multiauth/src/Ollieread/Multiauth/Reminders/ReminderServiceProvider.php:49
Please check for this value since it has been introduced in a recent version and thus breaks all old code.